2022學(xué)年第一學(xué)期鄭光南《方程的意義》

人教新課標五年級數(shù)學(xué)上冊方程的意義天平砝碼托盤指針和刻度盤等式35+65=1005x+32=47X-14>7228<16+14Y+246(y+2)=425x+6y=349x3=36-x110-55=5535+65=1005x+32=476(y+2)=429x3=36-x110-55=555x+6y=349x3=36-x5x+6y=346(y+2)=425x+32=47找一找下面式子哪些是等式，哪些是方程？方程等式方程35+65=1005x+32=47X-14>7228<16+14Y+246(y+2)=425x+6y=349x3=36-x110-55=5535+65=1005x+32=476(y+2)=429x3=36-x110-55=555x+6y=349x3=36-x5x+6y=346(y+2)=425x+32=4735+65=100110-55=559x3=36-x5x+32=476(y+2)=425x+32=476(y+2)=429x3=36-x5x+6y=34找一找下面式子哪些是等式，哪些是方程？等式35+65=1005x+32=47X-14>7228<16+14Y+246(y+2)=425x+6y=349x3=36-x110-55=5535+65=1005x+32=476(y+2)=429x3=36-x110-55=555x+6y=349x3=36-x5x+6y=346(y+2)=425x+32=4735+65=100110-55=559x3=36-x5x+32=476(y+2)=425x+32=476(y+2)=429x3=36-x5x+6y=34等式等式5x+32=479x3=36-x6(y+2)=425x+32=479x3=36-x5x+6y=346(y+2)=425x+32=479x3=36-x5x+32=479x3=36-x6(y+2)=429x3=36-x5x+32=476(y+2)=429x3=36-x5x+6y=345x+32=476(y+2)=429x3=36-x5x+6y=349x3=36-x5x+32=475x+6y=349x3=36-x6(y+2)=425x+32=475x+6y=349x3=36-x等式方程6(y+2)=425x+32=475x+6y=349x3=36-x找一找下面式子哪些是等式，哪些是方程？等式5x+6y=349x3=36-x5x+32=476(y+2)=425x+32=476(y+2)=429x3=36-x5x+6y=34等式等式5x+32=479x3=36-x6(y+2)=425x+32=479x3=36-x5x+6y=346(y+2)=425x+32=479x3=36-x5x+32=479x3=36-x6(y+2)=429x3=36-x5x+32=476(y+2)=429x3=36-x5x+6y=345x+32=476(y+2)=429x3=36-x5x+6y=349x3=36-x5x+32=475x+6y=349x3=36-x6(y+2)=425x+32=475x+6y=349x3=36-x方程說一說：方程與等式之間的關(guān)系方程一定是等式；但等式不一定是方程。等式1、看圖列出方程。3χ=186圖1已經(jīng)走X米還剩73米166米圖2χ+73=166一、寫一寫家學(xué)校

-5+8=15二、你能給方程配上具體的情景嗎？（1）a+1=12（2）6m=300（3）2x+10=30

早在三千六百多年前，埃及人就會用方程解決數(shù)學(xué)問題了。在我國古代，大約兩千年前成書的《九章算